CN113974899A - Protective device for animal joint cavity injection - Google Patents
Protective device for animal joint cavity injection Download PDFInfo
- Publication number
- CN113974899A CN113974899A CN202111408556.0A CN202111408556A CN113974899A CN 113974899 A CN113974899 A CN 113974899A CN 202111408556 A CN202111408556 A CN 202111408556A CN 113974899 A CN113974899 A CN 113974899A
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- Prior art keywords
- animal
- needle
- sleeve
- needle head
- joint cavity
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 241001465754 Metazoa Species 0.000 title claims abstract description 71
- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 title claims description 6
- 210000000689 upper leg Anatomy 0.000 claims abstract description 12
- 210000000845 cartilage Anatomy 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 10
- 230000001815 facial effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 201000008482 osteoarthritis Diseases 0.000 abstract description 5
- 230000000472 traumatic effect Effects 0.000 abstract description 4
- 244000309466 calf Species 0.000 abstract description 3
- 238000006748 scratching Methods 0.000 abstract description 3
- 230000002393 scratching effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 206010015866 Extravasation Diseases 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 210000001188 articular cartilage Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000036251 extravasation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010007710 Cartilage injury Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D3/00—Appliances for supporting or fettering animals for operative purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D3/00—Appliances for supporting or fettering animals for operative purposes
- A61D2003/006—Appliances for supporting or fettering animals for operative purposes with leg or foot restraining means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Animal Husbandry (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A protection device for animal joint cavity injection comprises an injector body and a fixed platform, wherein a tip needle head is arranged on the injector body, a flat end needle head capable of moving on the tip needle head to prevent the tip needle head from damaging cartilage is clamped outside the tip needle head, the animal joint cavity cannot be damaged through the flat end needle head, the tip needle head can be wrapped in the flat end needle head, and the tip needle head is prevented from scratching the joint cavity to cause artificial traumatic osteoarthritis; a first sleeve for fixing the thigh of the animal is hinged on the fixed platform, a second sleeve for fixing the calf of the animal is hinged on the first sleeve, and a latch for fixing the second sleeve is formed on the fixed platform; the included angle between animal thigh and the shank can be adjusted according to experimenter's demand, can open the joint chamber clearance of animal completely through the tractive, and the experimenter of being convenient for carries out joint chamber puncture injection, can also effectively fix the animal, and the experimenter can one carry out quick effective operation, has practiced thrift manpower and time cost greatly.
Description
Technical Field
The invention relates to the technical field of animal experiment modeling, in particular to a protective device for animal joint cavity injection.
Background
Joint cavity injection is an experimental procedure often required for animal osteoarthritis modeling and intervention. The joint cavity injection device that uses at present is because of the needle tubing overlength, the needle point is sharp, and animal (especially mouse and rat) joint cavity is little, and then cause articular cartilage damage or medicine extravasation very easily at the in-process of injecting to the joint cavity, damage articular cartilage can cause artificial traumatic osteoarthritis, medicine extravasation then can cause the drug effect not good or make the mould failure, thereby influence the experimental result reliability, and the animal degree of adaptability is not high, and do not have fixing device and then lead to single operational difficulty in present animal joint cavity injection process, need two people's cooperative operation, extravagant manpower and time cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the protective device for animal articular cavity injection, which has high molding success rate, good protective performance and convenient use.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a protector for be used for animal joint chamber to inject, includes syringe body and fixed platform, syringe body facial make-up is equipped with sharp-pointed needle, the outer joint of sharp-pointed needle has the flat-end syringe needle that can move on sharp-pointed needle and prevent sharp-pointed needle damage cartilage, the first sleeve of fixed animal thigh is equipped with to the last hinge of fixed platform, the second sleeve of fixed animal shank is equipped with to first telescopic other end hinge, the last shaping of fixed platform has the latch that is used for fixed second sleeve.
As a further improvement of the above technical features:
the last shaping of most advanced syringe needle has the connecting portion of getting up most advanced syringe needle and syringe body connected, still the shaping is equipped with the gag lever post of wearing to locate on the flat-end syringe needle lateral wall on the most advanced syringe needle, set up on the flat-end syringe needle and be convenient for the gag lever post to remove so that the gag lever post can carry out spacing logical groove to the flat-end syringe needle.
The outer wall of the flat-end needle head is provided with a limiting blocking platform which is sleeved on the connecting part and limits the penetrating distance of the sharp-end needle head.
The through groove comprises a first sliding groove arranged along the extending direction of the flat-end needle head, a second sliding groove connected with one end, close to the injector body, of the first sliding groove is further formed in the side wall of the flat-end needle head, and a third sliding groove connected with the other end of the second sliding groove and extending towards the puncturing direction is further formed in the flat-end needle head.
The length difference between the first sliding groove and the third sliding groove is larger than or equal to the length of the pointed needle extending out of the flat-end needle.
The first sleeve comprises a first lower arc plate hinged with the fixed platform, a first upper arc plate is clamped on the first lower arc plate, and a first connecting plate hinged with the second sleeve is further formed on the first lower arc plate.
The second sleeve comprises a second connecting plate hinged to the first connecting plate, a second lower arc plate is formed on the second connecting plate, a second upper arc plate is clamped on the second lower arc plate, and a bearing rod matched with the clamping teeth is formed on the second lower arc plate.
A plurality of mounting grooves are all seted up in first arc board, second arc board and the second arc board down, soft fixed bed has been installed to detachably in the mounting groove.
And a spring is arranged between the first lower arc plate and the second lower arc plate.
The lifting plate is hinged to the end portion, close to the first lower arc plate, of the first connecting plate and the end portion, close to the second lower arc plate, of the second connecting plate, and screws capable of lifting the lifting plate are arranged on the first connecting plate and the second connecting plate.
Compared with the prior art, the invention has the advantages that:
the injector body can penetrate into an animal joint cavity through the tip needle head, then the flat end needle head is moved on the tip needle head and clamped, so that the tip needle head is completely wrapped in the flat end needle head by the flat end needle head, the animal joint cavity cannot be damaged by the flat end needle head, the tip needle head can be completely wrapped in the flat end needle head, artificial traumatic osteoarthritis caused by scratching of the joint cavity by the tip needle head can be prevented, and the adjustment is convenient; then up the animal belly, can fix the thigh of animal through first sleeve, then can fix the shank of animal through the second sleeve, first sleeve is articulated to be installed on fixed platform, first sleeve is articulated with the second sleeve, the second sleeve erects on the latch, first sleeve is articulated with the second sleeve and can adjusts the contained angle between first sleeve and the second sleeve, then can fix the telescopic position of second through the latch, so set up, can adjust the contained angle between animal thigh and the shank according to experimenter's demand, and can open the joint clearance of animal completely, the experimenter of being convenient for carries out the puncture injection, in addition, can also effectively fix the animal, experimenter can single operate, manpower resources have been practiced thrift greatly, and convenient for operation.
Drawings
FIG. 1 is a perspective view of the general construction of the injector body of a shield for an animal joint cavity injection of the present invention (first state);
FIG. 2 is a perspective view of the general construction of the injector body of the shield apparatus for animal joint cavity injection of the present invention (second state);
FIG. 3 is a cross-sectional view of the injector body of a shield apparatus for use in injecting an animal joint space in accordance with the present invention;
FIG. 4 is a perspective cross-sectional view of the injector body of a shield apparatus for animal joint cavity injection in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a perspective view of the general construction of a mounting platform of a shield apparatus for injection into an animal joint cavity in accordance with the present invention;
FIG. 7 is a cross-sectional view of a mounting platform of a shield apparatus for injection into an animal joint cavity in accordance with the present invention;
fig. 8 is a partial method diagram at B in fig. 7.
The reference numerals in the figures denote:
1. an injector body; 11. a sharp-pointed needle head; 111. a connecting portion; 112. a limiting rod; 12. a flat-ended needle; 121. a through groove; 1211. a first sliding groove; 1212. a second sliding groove; 1213. a third sliding groove; 122. a limiting stop table; 2. a fixed platform; 21. a first sleeve; 211. a first lower arc plate; 212. a first upper arc plate; 213. a first connecting plate; 22. a second sleeve; 221. a second connecting plate; 222. a second lower arc plate; 223. a second upper arc plate; 224. a carrier bar; 225. a spring; 23. clamping teeth; 24. mounting grooves; 25. a soft fixed layer; 26. lifting the plate; 27. a screw; 28. and (4) binding the bands.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 8 show an embodiment of a protection device for animal articular cavity injection according to the present invention, which comprises a syringe body 1 and a fixed platform 2, wherein a pointed needle 11 is mounted on the syringe body 1, a flat needle 12 capable of moving on the pointed needle 11 to prevent the pointed needle 11 from damaging cartilage is clamped outside the pointed needle 11, a first sleeve 21 for fixing the thigh of an animal is hinged on the fixed platform 2, a second sleeve 22 for fixing the calf of an animal is hinged on the other end of the first sleeve 21, and a latch 23 for fixing the second sleeve 22 is formed on the fixed platform 2. The injector body 1 can penetrate into an animal joint cavity through the tip needle head 11, then the flat end needle head 12 is moved on the tip needle head 11, and the flat end needle head 12 is clamped, so that the tip needle head 11 is completely wrapped in the flat end needle head 12 through the flat end needle head 12, the animal joint cavity cannot be damaged through the flat end needle head 12, the tip needle head 11 can be completely wrapped in the flat end needle head 12, the tip needle head 11 can be prevented from scratching the joint cavity to cause artificial traumatic osteoarthritis, and the adjustment is convenient; then the animal is positioned with its abdomen facing upwards, the thigh of the animal can be fixed by the first sleeve 21, then the calf of the animal can be fixed through the second sleeve 22, the first sleeve 21 is hinged on the fixed platform 2, the first sleeve 21 is hinged with the second sleeve 22, the second sleeve 22 is erected on the latch 23, the first sleeve 21 is hinged with the second sleeve 22 to adjust the included angle between the first sleeve 21 and the second sleeve 22, then the position of the second sleeve 22 can be fixed through the latch 23, and by the arrangement, the included angle between the thigh and the shank of the animal can be adjusted according to the requirement of an experimenter, and can open the joint chamber of animal completely, the laboratory staff of being convenient for carries out the puncture injection, in addition, can also fix the animal, and the laboratory staff can one-man operate, has practiced thrift manpower resources greatly, convenient operation.
As a further improvement of the above technical features:
in this embodiment, the last shaping of sharp-end syringe needle 11 has the connecting portion 111 of being connected sharp-end syringe needle 11 and syringe body 1, and still the shaping is equipped with the gag lever post 112 of wearing to locate on the lateral wall of flush end syringe needle 12 on sharp-end syringe needle 11, offers on the flush end syringe needle 12 to be convenient for gag lever post 112 to remove so that gag lever post 112 can carry out spacing logical groove 121 to flush end syringe needle 12. Sharp-end syringe needle 11 wears to establish in flush end syringe needle 12, the logical groove 121 has been seted up twice on the flush end syringe needle 12, the symmetry shaping has two gag lever post 112 on the sharp-end syringe needle 11, every is worn to be equipped with a gag lever post 112 in leading to the groove 121, through gag lever post 112 and logical groove 121, flush end syringe needle 12 can slide on sharp-end syringe needle 11, after syringe body 1 puncture gets into the joint chamber, can wrap up sharp-end syringe needle 11 in flush end syringe needle 12 through removing flush end syringe needle 12, can be with the rigidity of flush end syringe needle 12 through gag lever post 112 and logical groove 121, prevent that flush end syringe needle 12 from stretching out the back and resetting, can prevent that the joint chamber from being scratched by sharp-end syringe needle 11.
In this embodiment, a limiting stop 122 that is sleeved on the connecting portion 111 and limits the penetration distance of the sharp needle 11 is formed on the outer wall of the flat-end needle 12. Can prevent through spacing fender platform 122 that sharp-end syringe needle 11 and flat-end syringe needle 12 from pricking too deeply and result in the joint chamber to be pierced, can further improve barrier propterty, improve the success rate of moulding by a wide margin.
In this embodiment, the through slot 121 includes a first sliding slot 1211 disposed along the extending direction of the flat-end needle 12, a second sliding slot 1212 connected to one end of the first sliding slot 1211 close to the syringe body 1 is further formed on the sidewall of the flat-end needle 12, and a third sliding slot 1213 connected to the other end of the second sliding slot 1212 and extending in the puncturing direction is further formed on the flat-end needle 12. Through the first sliding groove 1211, the flat-end needle head 12 can be moved on the surface of the sharp-end needle head 11, the limiting rod 112 can be placed in the third sliding groove 1213 through the second sliding groove 1212, when the sharp-end needle head 11 needs to be used for puncturing the joint cavity, the limiting rod 112 can be placed in the first sliding groove 1211, when the flat-end needle head 12 needs to be used, the limiting rod 112 can be placed in the third sliding groove 1213, and the adjustment is convenient.
In this embodiment, the difference in length between the first sliding groove 1211 and the third sliding groove 1213 is greater than or equal to the length of the pointed needle 11 protruding inside the flat-ended needle 12. So set up, can guarantee that sharp-pointed needle 11 is all arranged in the inside of plain end syringe needle 12, prevent that sharp-pointed needle 11 part from exposing and scraping articular cavity outside plain end syringe needle 12.
In this embodiment, the first sleeve 21 includes a first lower arc plate 211 hinged to the fixed platform 2, a first upper arc plate 212 is fastened to the first lower arc plate 211, and a first connecting plate 213 hinged to the second sleeve 22 is further formed on the first lower arc plate 211. The first lower arc plate 211 and the first upper arc plate 212 are detachably connected through a buckle, and can enclose a cylinder structure with two open ends, and the thighs of animals can be fixed in the cylinder structure.
In this embodiment, the second sleeve 22 includes a second connecting plate 221 hinged to the first connecting plate 213, a second lower arc plate 222 is formed on the second connecting plate 221, a second upper arc plate 223 is clamped on the second lower arc plate 222, and a bearing rod 224 matched with the latch 23 is formed on the second lower arc plate 222. The second lower arc plate 222 and the second upper arc plate 223 are detachably connected through a buckle, can enclose a cylindrical structure with two open ends, can fix the lower leg of an animal in the cylindrical structure, and can be hinged and connected with the first connecting plate 213 through the second connecting plate 221.
In this embodiment, the first lower arc plate 211, the first upper arc plate 212, the second lower arc plate 222 and the second upper arc plate 223 are respectively provided with a plurality of mounting grooves 24, and the mounting grooves 24 are detachably provided with the soft fixing layers 25. Soft fixed layer 25 detachably installs in mounting groove 24, first arc board 211 links into annular structure with soft fixed layer 25 on the corresponding position in the first last arc board 212, can fix the thigh of animal through annular structure, second arc board 222 links into annular structure with soft fixed layer 25 on the corresponding position in the second last arc board 223, can fix the shank of animal through annular structure, so set up, can prevent that the animal from moving in injection process shank, and then prevent that the syringe from leading to the fact the damage to the articular cavity of animal, and through soft fixed layer 25 direct and animal contact, can not lead to the fact the damage to the skeleton and the epidermis of animal, in addition can also change soft fixed layer 25 according to the shank size of animal, application scope can be improved.
In this embodiment, a spring 225 is disposed between the first lower arc plate 211 and the second lower arc plate 222. The pulling force through spring 225 can be with the second arc board 222 under draw to first arc board 211, the shaping has carrier bar 224 on the second arc board 222 down, through with the cooperation between latch 23, the second arc board 222 only can remove to the direction of keeping away from first arc board 211 down, through the pulling force of spring 225, can prevent that the animal from being moved after being fixed, so set up, be convenient for adjust the angle between animal thigh and the shank, it is convenient to adjust.
In this embodiment, the lifting plate 26 is hinged to the end of the first connecting plate 213 close to the first lower arc plate 211 and the end of the second connecting plate 221 close to the second lower arc plate 222, and the screws 27 capable of lifting the lifting plate 26 are mounted on the first connecting plate 213 and the second connecting plate 221. When injection is needed, the lifting plate 26 is lifted by rotating the screw 27, so that the joint cavity of an animal can be completely opened, and injection is convenient for an experimenter.
In this embodiment, the fixed platform 2 is further provided with a strap 28 for preventing the animal from moving on the fixed platform 2. The body of the animal can be fixed on the fixed platform 2 through the binding belt 28, so that the animal is prevented from moving on the fixed platform 2 and the injection of an experimenter is prevented from being influenced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A protective device for injecting an animal joint cavity, characterized in that: including syringe body (1) and fixed platform (2), syringe body (1) facial make-up is equipped with sharp-pointed needle (11), sharp-pointed needle (11) outer joint has can move on sharp-pointed needle (11) and prevents flat-end needle (12) that sharp-pointed needle (11) damaged cartilage, fixed platform (2) go up the hinge and are equipped with first sleeve (21) of fixed animal thigh, the other end hinge of first sleeve (21) is equipped with second sleeve (22) of fixed animal shank, the shaping has latch (23) that are used for fixed second sleeve (22) on fixed platform (2).
2. The shield for animal joint cavity injection of claim 1, wherein: the shaping has connecting portion (111) of being connected sharp-end syringe needle (11) and syringe body (1) on sharp-end syringe needle (11), it has gag lever post (112) of wearing to locate on flush end syringe needle (12) lateral wall still to shape on sharp-end syringe needle (11), it removes so that gag lever post (112) can carry out spacing logical groove (121) to flush end syringe needle (12) to offer on flush end syringe needle (12) to be convenient for gag lever post (112).
3. The shield for animal joint cavity injection of claim 2, wherein: the outer wall of the flat-end needle head (12) is provided with a limiting stop table (122) which is sleeved on the connecting part (111) and limits the penetrating distance of the sharp-end needle head (11).
4. The shield for animal joint cavity injection of claim 2, wherein: the through groove (121) comprises a first sliding groove (1211) arranged along the extending direction of the flat-end needle head (12), a second sliding groove (1212) connected with one end, close to the injector body (1), of the first sliding groove (1211) is further formed in the side wall of the flat-end needle head (12), and a third sliding groove (1213) connected with the other end of the second sliding groove (1212) and extending towards the puncturing direction is further formed in the flat-end needle head (12).
5. The shield for animal joint cavity injection of claim 4, wherein: the length difference between the first sliding groove (1211) and the third sliding groove (1213) is larger than or equal to the length of the pointed needle (11) extending in the flat needle (12).
6. The shield for animal joint cavity injection of claim 1, wherein: first sleeve (21) include with fixed platform (2) articulated first arc board (211) down, the joint has first arc board (212) on first arc board (211) down, still the shaping has second sleeve (22) articulated first connecting plate (213) on first arc board (211) down.
7. The shield for animal joint cavity injection of claim 6, wherein: the second sleeve (22) comprises a second connecting plate (221) hinged to the first connecting plate (213), a second lower arc plate (222) is formed on the second connecting plate (221), a second upper arc plate (223) is clamped on the second lower arc plate (222), and a bearing rod (224) matched with the clamping teeth (23) is formed on the second lower arc plate (222).
8. The shield for animal joint cavity injection of claim 7, wherein: a plurality of mounting grooves (24) are formed in the first lower arc plate (211), the first upper arc plate (212), the second lower arc plate (222) and the second upper arc plate (223), and soft fixing layers (25) are detachably mounted in the mounting grooves (24).
9. The shield for animal joint cavity injection of claim 8, wherein: a spring (225) is arranged between the first lower arc plate (211) and the second lower arc plate (222).
10. The shield for animal joint cavity injection of claim 7, wherein: the lifting plate (26) is hinged to the end portion, close to the first lower arc plate (211), of the first connecting plate (213) and the end portion, close to the second lower arc plate (222), of the second connecting plate (221), and the first connecting plate (213) and the second connecting plate (221) are provided with screws (27) capable of lifting the lifting plate (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111408556.0A CN113974899A (en) | 2021-11-19 | 2021-11-19 | Protective device for animal joint cavity injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111408556.0A CN113974899A (en) | 2021-11-19 | 2021-11-19 | Protective device for animal joint cavity injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113974899A true CN113974899A (en) | 2022-01-28 |
Family
ID=79750423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111408556.0A Pending CN113974899A (en) | 2021-11-19 | 2021-11-19 | Protective device for animal joint cavity injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113974899A (en) |
-
2021
- 2021-11-19 CN CN202111408556.0A patent/CN113974899A/en active Pending
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